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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 11 (1987), S. 117-124 
    ISSN: 1432-5195
    Keywords: Anterior cruciate ligament ; Synovium ; Structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Etude microscopique de 16 ligaments croisés antérieurs (L. C. A.) prélevés post-mortem en conservant la continuité topographique de leur structure synoviale et ligamentaire. Le revêtement synovial du L. C. A. se compose de trois types différents de tissu: fibreux, aréolaire et aréolo-adipeux. La synoviale elle-même est constituée de deux couches dont la seconde partie, la sous-synoviale, se différencie en une partie périphérique, fibreuse et dense et une partie faite de tissu conjonctif lâche, porteur des structures vasculaires et nerveuses. Le tissu collagène du L. C. A., le vrai tissu fonctionnel, contient environ 1500 fascicules d'un diamètre moyen de 250 μm. Ces fascicules sont constitués de faisceaux de fibres collagènes, de fibrocytes et de protéoglycans. Les structures synoviales et ligamentaires sont reliées entre elles par l'intermédiaire de la couche sous-synoviale qui irradie dans le tissu ligamentaire dont elle engaîne les fascicules. Ainsi est établie une connexion biologique entre ces deux structures. Les conséquences de cette étude sur la réparation chirurgicale des ruptures récentes du L. C. A. sont discutées.
    Notes: Summary The synovial and ligamentous structure of 16 human anterior cruciate ligaments (ACL), removed at autopsy, were examined by light microscopy with special regard to their topographical relationships. The soft tissue support of the ACL consists of fibrous, areolar and areolo-adipose synovial tissue. The subsynovial layer comprises a tight fibrous peripheral part and an element of loose connective tissue containing some tight connective tissue strands, vessels and nerves. The collagenous ligamentous part of the ACL is the proper functional tissue and contains approximately 1500 fascicles measuring an average of 250 μm in diameter. These fascicles are composed of bundles of collagen fibres, fibrocytes and deposits of proteoglycans. The synovial and ligamentous structures are attached by the second part of the subsynovial layer, which radiates into the ligamentous tissue and envelops the fascicles like a sheath. By this means the biological connection between these two structures is guaranteed. The relevance of these findings to operative reconstruction of recent ligamentous injuries is discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 385 (2000), S. 207-212 
    ISSN: 1435-2451
    Keywords: Key words Hemangiopericytoma ; Bone neoplasms ; Diagnosis ; Therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Hemangiopericytoma is a rare vascular tumor of pericyte origin with variable malignant potential. Very rarely, this tumor occurs as a primary bone lesion. We present a case of a highly malignant hemangiopericytoma of the proximal tibia. Current therapy consists of radical resection of the tumor with postoperative radiation therapy being recommended. Chemotherapy seems to be useful in disseminated disease. The prognosis correlates to the histological grading of the tumor. Early or late recurrence and distant metastases with fatal outcome, as shown in our case study, are not uncommon.
    Type of Medium: Electronic Resource
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